Which of the following is the correct way to declare a variable named score with initial value 10 in Swift?

easy📝 Syntax Q12 of 15

iOS Swift - Swift Language Essentials

Which of the following is the correct way to declare a variable named score with initial value 10 in Swift?

Alet score = 10

Bvar score = 10

Cscore var = 10

Dvariable score = 10

Step-by-Step Solution

Solution:

Step 1: Identify variable declaration syntax
In Swift, var is used to declare variables that can change, and the syntax is var name = value.
Step 2: Check each option
var score = 10 uses correct syntax. let score = 10 declares a constant, not a variable. score var = 10 and variable score = 10 are invalid syntax.
Final Answer:
var score = 10 -> Option B
Quick Check:
Variable declaration = var name = value [OK]

Quick Trick: Use var for variables, let for constants [OK]

Common Mistakes:

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